package io;

import java.io.*;

public class CopyDemo3 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("image.png");
        BufferedInputStream bis = new BufferedInputStream(fis,1024*10);
        FileOutputStream fos = new FileOutputStream("image_cp.png");
        BufferedOutputStream bos = new BufferedOutputStream(fos,1024*10);
        int d;
        long start = System.currentTimeMillis();
        while ((d = bis.read()) != -1) ;
        {
            bos.write(d);

        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕,耗时:" + (end - start));
        bis.close();
        bos.close();
    }
}
